Global Patent Index - EP 1978383 A1

EP 1978383 A1 20081008 - Transmission optical fiber having large effective area

Title (en)

Transmission optical fiber having large effective area

Title (de)

Übertragungsglasfaser mit einem großen Wirkbereich

Title (fr)

Fibre optique de transmission disposant d'une large zone effective

Publication

EP 1978383 A1 20081008 (EN)

Application

EP 08005802 A 20080327

Priority

FR 0702545 A 20070406

Abstract (en)

The present invention relates to a transmission optical fiber comprises a central core having a radius (r 1 ) larger than or equal to 5.5 µm and a refractive index difference (”n 1 ) less than or equal to 5.0.10 -3 ; an intermediate cladding having a radius (r 2 ) and a refractive index difference (”n 2 ), the width of the intermediate cladding (r 2 -r 1 ) being more than 5 µm; and a depressed cladding having a radius (r 3 ) and a refractive index difference (”n 3 ) less than or equal to -3.5.10 -3 , the width of the depressed cladding (r 3 -r 2 ) being less than 5 µm. The optical fiber has an effective area larger than 120 µm 2 with a cut-off wavelength limited to 1600 nm without degradation of other optical parameters of the optical fiber as compared with a SSMF, notably in terms of losses and dispersion.

IPC 8 full level

G02B 6/036 (2006.01); G02B 6/02 (2006.01)

CPC (source: EP US)

G02B 6/02019 (2013.01 - EP US); G02B 6/02266 (2013.01 - EP US); G02B 6/0365 (2013.01 - EP US)

Citation (applicant)

  • US 6658190 B2 20031202 - HIRANO MASAAKI [JP], et al
  • US 6665482 B2 20031216 - KAWASAKI MITSUHIRO [JP], et al
  • US 5781684 A 19980714 - LIU YANMING [US]
  • US 2005244120 A1 20051103 - MISHRA SNIGDHARAJ K [US]
  • US 6483975 B1 20021119 - HSU LUCAS [US], et al
  • US 4852968 A 19890801 - REED WILLIAM A [US]
  • EP 1477831 A1 20041117 - FITEL USA CORP [US]
  • MASAO TSUKITANI ET AL.: "Ultra Low Nonlinearity Pure-Silica-Core Fiber with an Effective Area of 211 and Transmission Loss of 0.159 dB/km", M3.3.2, ECOC 2002, 9 September 2002 (2002-09-09)
  • KAZUMASA OHSONO ET AL.: "The Study of Ultra Large Effective Area Fiber & Mating Dispersion Slope Compensating Fiber for Dispersion Flattened Hybrid Optical Fiber DWDM Link", IWCS 2002, 18 November 2002 (2002-11-18), pages 483 - 487
  • KAZUHIKO AIKAWA ET AL.: "Single-Mode Optical Fiber with Effective Core Area larger than 160", ECOC 1999, 26 September 1999 (1999-09-26), pages I-302

Citation (search report)

  • [AD] US 2005244120 A1 20051103 - MISHRA SNIGDHARAJ K [US]
  • [AD] US 4852968 A 19890801 - REED WILLIAM A [US]
  • [A] AIKAWA K ET AL: "SINGLE-MODE OPTICAL FIBER WITH EFFECTIVE CORE AREA LARGER THAN 160 MUM2", OFC/IOOC '99 OPTICAL FIBER COMMUNICATION CONFERENCE / INTERNATIONAL CONFERENCE ON INTEGRATED OPTICS AND OPTICAL FIBER COMMUNICATION. SAN DIEGO, CA, FEB. 21 - 26, 1999; [OPTICAL FIBER COMMUNICATION CONFERENCE / INTERNATIONAL CONFERENCE ON INTEGRATED O, vol. 1, 26 September 1999 (1999-09-26), pages I - 302/I, XP000964618, ISBN: 978-0-7803-5430-2

Designated contracting state (EPC)

AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MT NL NO PL PT RO SE SI SK TR

Designated extension state (EPC)

AL BA MK RS

DOCDB simple family (publication)

EP 1978383 A1 20081008; EP 1978383 B1 20140528; CN 101281275 A 20081008; CN 101281275 B 20110706; DK 1978383 T3 20140825; ES 2492467 T3 20140909; FR 2914751 A1 20081010; FR 2914751 B1 20090703; JP 2008257250 A 20081023; JP 5379396 B2 20131225; US 2011044595 A1 20110224; US 8041172 B2 20111018

DOCDB simple family (application)

EP 08005802 A 20080327; CN 200810090152 A 20080407; DK 08005802 T 20080327; ES 08005802 T 20080327; FR 0702545 A 20070406; JP 2008097826 A 20080404; US 9880408 A 20080407